9 Frequently asked questions (FAQ)
I’d like to calibrate a body but the body calibration dialogue is greyed out.
Please ensure that you have performed and accepted a valid room calibration prior to
body calibration. Check in the Event Display if there is a warning saying ’no valid room
calibration’.
You may only calibrate bodies if you have the ’Extended’ or the ’Full-featured’ license.
With a ’Basic’ license you are only able to calibrate bodies using a calibration file.
Go to DTrack2 → Licenses to see which license you have.
Starting with DTrack2 version v2.10 a new license model has been established. Thus you
are always allowed to manually calibrate up to 4 bodies at least.
What is the difference between ’due to body’ and ’due to room’?
When selecting ’due to body’, the body coordinate system is fixed by the markers of the
rigid body. The origin of the body coordinate system is set to the center of gravity of all
markers building the rigid body when ’due to room’ is used.
Please refer to chapter 8.6.5.4 on page 178 for more information.
Do I have to move the target while performing a body calibration?
If possible we recommend to perform moderate movements because accuracy can be
improved doing so. However, the body has to be visible to the cameras all the time.
May I change the position and the orientation of the body coordinate system
later on?
Yes, you may use the dialogue Body adjustment to alter position and orientation of the
body coordinate system. Please refer to chapter 8.6.6 on page 183 for more information.
How do I define a name for a target?
Go to Settings → Body Administration (F8). Double-click into the name field and enter
a name for the respective body. Please refer to chapter 8.5.6 on page 155 for more
information.
I cannot increase the number of targets anymore.
The maximum number of targets to be tracked (including Flysticks and Fingertracking
hand devices) depends on the license that is installed. With the ’Basic’ and the ’Ex-
tended’ license you may only use 4 targets at the same time - the ’Full-featured’ license
supports 50 targets. Go to DTrack2 → Licenses to see which license you have.
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